53685219251 has 2 divisors, whose sum is σ = 53685219252. Its totient is φ = 53685219250.

The previous prime is 53685219209. The next prime is 53685219257. The reversal of 53685219251 is 15291258635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53685219251 - 2⁶ = 53685219187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53685219196 and 53685219205.

It is not a weakly prime, because it can be changed into another prime (53685219257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26842609625 + 26842609626.

It is an arithmetic number, because the mean of its divisors is an integer number (26842609626).

Almost surely, 2^53685219251 is an apocalyptic number.

53685219251 is a deficient number, since it is larger than the sum of its proper divisors (1).

53685219251 is an equidigital number, since it uses as much as digits as its factorization.

53685219251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 47.

The spelling of 53685219251 in words is "fifty-three billion, six hundred eighty-five million, two hundred nineteen thousand, two hundred fifty-one".